It cannot be debated that viruses, Trojans, worms and other malicious threats have become detrimental and an unavoidable, unfortunate part of the online world. The worse part is, hackers have also devised new and complex ways to infiltrate into users' computer systems and access their confidential data such as personal and financial information. If you are not cautious enough to secure your system by installing the best antivirus software, you may quite easily fall prey to these noxious virus attacks. If you want to enhance the security of your computer system, there are various antivirus protection programs available in the market.

Some of them are as follows:

Kaspersky: If you want a complete solution for your computer system, then you must go for the Kaspersky antivirus. It is one of the best antivirus software which has proven to be very professional and easy to use. It provides optimum protection against the various kinds of threats such as viruses, Trojans, adware, worms and rootkits. The notable features of Kaspersky program are as follows:

· Network port monitoring

· Automatic scanning

· User-friendly interface

· Immediate restriction of suspicious program behavior through cloud protection

Immunet: Immunet is one of the best antivirus protection programs which is immensely popular all over the world. It is essentially a cloud-based and community-driven software that provides the best shield for your computer against the deadly viruses and malwares. The best thing about Immunet is, it is easy to setup and install. The unique feature of Immunet antivirus is its ability to perfectly work with the existing security programs that have already been installed into your computer system without affecting the overall performance of the computer. Some of the notable features of Immunet are:

· It is lightweight and is compatible with previous security programs

· It is community based

· It has Cloud-based protection

· It offers flash, full and custom scan

· Protects all emails from viruses

Norton: Norton antivirus offers premium protection against many kinds of online threats such as rootkits, spyware, viruses and spam, to name a few. Norton is able to protect users while browsing the web and extends when users try to access compact disks or flash drives. You can download this antivirus free of any charge if you wish to try it out first before finally deciding on one. If you are concerned about how Norton will affect the performance or the speed of your computer, there is no need to worry, since Norton has not had any issues regarding the speed of computer systems in which it has been installed.

AVG: If you are scouting for a free antivirus download that is easy to use and provides excellent protection against potentially harmful viruses, then AVG antivirus would serve to be the best option. It offers advanced protection and conducts a faster scan through of the whole system. It also provides an added layer of protection known as the LinkScanner that ensures that web links are absolutely safe to use.

Avast: Avast comes with all the essential features that must be part of any antivirus program. Not only is the installation process very quick, but it makes sure that your private data is safe by providing a solid protection against various virus infections and malware threats. It comes with a new feature known as the Heuristics engine that automatically detects malware that is showing signs of intent to enter your system.